Joint Spectrum Allocation and Cache Placement in a D2d Network

4. The first wireless device of claim 1, wherein the processing circuitry is further configured to determine caching probabilities for the plurality of files, each caching probability corresponding to a probability of a file being requested by the second wireless device.

5. The first wireless device of claim 1, wherein the determination to cache the first file of the plurality of files is based at least in part on spatial statistics of a network.

6. The first wireless device of claim 5, wherein the spatial statistics include at least one of a density of the network and allocated spectrum.

7. The first wireless device of claim 5, wherein the spatial statistics include a requesting probability of the first file and respective densities of a network node, the first wireless device and second wireless device.

8. The first wireless device of claim 1, wherein the first file that is determined to be cached has a lower probability of being requested than at least one other file of the plurality of files that is not cached.

12. The method of claim 9, further comprising determining caching probabilities for the plurality of files, each caching probability corresponding to a probability of a file being requested by the second wireless device.

13. The method of claim 9, wherein the determination to cache the first file of the plurality of files is based at least in part on spatial statistics of a network.

14. The method of claim 13, wherein the spatial statistics include at least one of a density of the network and allocated spectrum.

15. The method of claim 13, wherein the spatial statistics include a requesting probability of the first file and respective densities of a network node, the first wireless device and second wireless device.

16. The method of claim 9, wherein the first file that is determined to be cached has a lower probability of being requested than at least one other file of the plurality of files that is not cached.

19. The network node of claim 17, wherein the indication is based at least in part on spatial statistics associated with of a network.

23. The method of claim 21, wherein the indication is based at least in part on spatial statistics associated with of a network.